Mining machine



July 21, 1931.

2 l 7 n, m 1% .am au m w X f 1 l d n E m Q E 7 1 w A a w m, w. w SEw .0Wmo. l mm2. T, j fwd .Hmm Y mmm MMM July 21, 1931. M. P. HoLMEs1,815,872

MINING MACHINE I Marzia-sty.

July 2l, 1931-.

M. P. HOLMES MINING MACHINE Filed Sept. 20, 1926 4 4 Sheets-Sheet 3 Zlibbue@ @ii-draag.

July 21, 1931.

M. P. HOLMES MINING MACHINE Filed sept. 2o, 1926 4 Sheets-She-et 4 8,the feed and/cutter mechanism carrying sections' being herein disposedatl opposite endsv of v*the Vmotor section. The yfeed and Y cuttersections vare rigidly connected to the motor-.section at points abovethe bottoms of the sections as by a seriesofbolt connections if V'9,preferablyV disposed inl side pockets in Y that herein the upper andllower surfaces erably, `disposedin the same planes in. such Vmanner asto unite to form 'aisingle@slijoefv adapt-'ed .to permit fileenlevemerltof the ma- Y chine thereon 'overl the lnl nine.fbottom-A lllereinit'will -benotedfa-Ylocking Vpin/3a` is: proanyone of a plurality ofcutaway portions tions heieinbeing so' disposed-0n the frame astoienable'thef'cutter bar to be locked'in longitudinal and opfpc'ysitelateral positions;

.Carries-"at-tsaurrelaerld e projecties' ,ein

'i n 5'@v Vaclaptedfto receive one endy of la double. ended hook-*621.(see. Fig; Y jl)l to which either l end-.fof tllefeed' Chain -5 islCoimectable' to sWingv 'the cutter bariaboutitsfpivot inra' manner'. tobelaterk described'. lt ;Will..als0 A bejnotedgtl'iat' the machineis ofthefinver'tible upper plane surface to operate asyan,over-k` cuttenina,nrannergclearly'described in my y l @pendii-,1e epnliten. ,Noi waled YvFebl'l'tl, 1923. -Operatively connected to the,t rear end of. a, motor'10,' which.v is lierein v preferably of fthe ,usual-reversible electrictypeghcused.Within theinotor` section 65 is thecutting mechanismincludingj'thecutter bary 3l and which is VYsubstantially the same asthatfdescribed in my vcopending applical tionimentioned above.; .Moreparticularly,git

will be i noted@A thatV thisV cutting mechanism includes la cuttercarrying cutter chain A11 adaptedto be circulated' about-the outeredgesoflthe. bian3ubyla usual cutterchain ,in :detail to the .drivingconnections'.it.will be: Aobserved Ithat the` rear. end of thehorizontal@.longitudinally VAextending armature .shaft ofthe motor llhas ksuitably secured theretofby alreiy. andscretv connectionl l4aclutch'inember'l' journaled in a ball bearing ljsuitablycarried Within.the frame 'sec' tion. As illustratecb the clutchmembervk L l5 is.internally 1 bored as `at I7v f to `receive alb'allzheerina :'18,within. whih @da tear-y ingV 19 carried-.bythe yframe'` section. '8 akshaft,2Qf`fis fjournlfletbthe'shaft 20being amlinedy Vwith:the:armvature shaft 13; f The@ `V shaft '2O has securedfthereto by a:key `21v a A4cli ain"ernb'ei''22;- Adisposed ,coaxialllyL withV Ttheiemetme shaft-awhile member' ,22 is adapted to be connected means ofV an axially-movable internally. toothed clutch Vmember 23 in drivingrelation'withthe clutch .member l5.V The shiftable clutch member 23isadapted'to 4be, actuated longitudinally bylnieans of a shipperl yoke24f(see' also Fiese @11.16.154 herein-Yin tllgform of@ bellycrankpivoted at 25 on the frame section! 8 `andpr0vicledwith arms v26l and 27cooperating with the: shiftableclutch member L23 and-a. `bifurcate'd.member 28 respectively. Thebifurcated member 28 engages av ver# ticaly"pi`n29 carried by the arm 27 and is in turn suitably carriedbyA acylindricall Vmem- `ber"'30slidablylmountedvithin va sleeve 3l,disposedvvithin a ltransversely disposed bore 32 formed in the sideofthe frame section J8.

Moreoyenthe sleevef4 3 1 .hasV secured thereto .projecting pinA'Ycooperati-ngV .with apcam Slet e36-.formed v.in Athe 1 memberilFurthermore, thememberBO isfprovided- With'V an upstanding portionyorinarm `3'1 having secured l theretoik at 38V VWithin vitsA upper fendfa transversely.-disposed`.rod-y yZ39I .WhichE-fisl -in turnisecurejdatfits opposite, endas'rbyy a SGYGWAO Within thefllpper .end of an11pstanding portion'or arm formedon a cylindrical member. 41 similartothe kmember 30, the member 41 likewise*beinggslidably ,Y disposedWithin acylindricalslee'vev42 rotat- Hmounted-within the bore 43 coaxialWith the bore 32. and formedonthe opposite sides of the-frame section'lhefsleeve-.42l

ico

has connected thereto ina'mannergheretoforeV describedin connection.with the sleeve 31, an .operating memberfor grasping portion 44. "ItWill vhereinbe .noted v that the pinl 33a maybe .mountedineither'of thesleeve-members 7.34' or 44 fand by rotating .Whichever one ofthefmembers34 or 44 carriesthe pin 33a, the member 30,:jtherod 39 and the member411nayybe slid'transversely of the'niachine relative to the sleeves 31;and 42 and ,the shipper yoke will consequently swing about its ypivot25, thus lconner'st'ing Vor ydisconnecting 'the Y shi'table kclutchmember 23 toer from the drivesproclret lfand. the .clutch 'member 22.1Aga-in referringl to Y,the driving'connections it'vvill be observedythat the shaft 2O haspreferablyformed thereonA a bevel Vp'inionv45'Which'- meshes With albevel `gear46 rotatable in a horizontal' rplaneronja to and rotatabletherevvitha spur' pinion 47 which.y meshes; with'alarge f spur gear-.48

suitably connected to the vchain n sprocketV l2 Which cooperates withand'*drivejs'thefcutter .chainfll in a- Well knownLfma'nner..k

More specifically describing,theyiinproved feeding mechanism,'itWillfbe' observedgthat thek forwardl end of the armature 4shaft:13-fof I.the -driv11g. meter.' is journaled a ball ings ,suifabiyearried-by theframe-Seaton 7-.1

Secured to theouter end of tlierod 116 .by

- akkey 117 isan `operating handlefllSLconcri" veniently located atf.the forWard'end ofl they machine. p Rotationxof the rod 116 is limitedbyQa-:p'in and'slot'connection 119. VIt Will' thus Vbe 7.evidentthatrotation ofthe handle '118,jand consequently'the lrod 116, effects lyswinging movement'` of the shipper yoke andA fio :consequently oneyorfthe other ofthe cont-rolling-,clutches,fconnecting the-[gears 87 and.'88tothe shaft `91is applied,=causing rotation of the lattervateither'ga fast speed in one direction, or ata slow speed inthe oppositedirection.k l Y. y.Improved elutchmechanism isprovided for connectingthe, spur gear 93 to the shaft on .the rlianged' portion --of the' shaft94. .ln-

shoWn in Fig. 6Y and these clutch teeth *engage* clutch teeth122a-formed on Vthe gearg 93.

The teeth y121iare adaptedtojcooperate withv the` clutch .teeth 120 fashereinafterl described.

""The clutch ringf1221islretainedvvithin the p recessinthe' gear93bymeans ofa radially eXpansible split iring123',the latter forming`api-projecting.shoulder with whicha radialy flange 124 yon the .clutchring is'q adapted to a engage...l The clutch ring 122- is normallyyieldably maintained against the ring 123i .by means of coiledsprings125.V lAs shown in Figs. 6, 7 11 and-12,'securedwvithin the vframesection 7 byscrevvs 126 is an. annularinember127 centrally cnt away toreceive the-hub of thel spur gear 93.V Furthermore, the side 'of theme'1nb`er127y is cut/away as 'at/.128' tol cleartheworm; gear 83. vThemember 127 yis 1 -provided *With a depending Vflanged portion vhavinglformed.thereininclined cam slots`129 Y with which radiallylocatedvpins130 carried f f by'a rotatable shipper ring 131coopfer'ate,the

i shipperlringfcarryingl a series of rollers132 --Whichengagezthe-iipperplaneurfac'e ofthe Vclutchy ring 122,k as clearly 'shownz in Fig. .6'."The shipper ring 131 is provided with laterallyprojecting lugsorteetli133 with Whicha' tooth or lug 134 formed on the horizontal Y, 4.rod 135cooperates', the rod 135 being axiallyY guided at itsoppositeendsginbores 136 movable transverselyl of the`V machine and*formed in the machine frame. Rotative movement .of thel rod 135 `isprevented by vmeans `of a'pinandfslot connection 137 V'ritsillustrated,*the rod 135 has Vtlireadedly4 con- -Y nectedi vthereto an-eye 'member138 which is vpivotally vconnected `(see valso Fig. '9.)`as' lat 139 to -alever 140,' the latter v'in turn being pivotallyconnected intermediate-its 4ends at 4141.0nthe front endof the/machineframe. ad-

,.jacentthe Vhandle `11:8 (see Fig. 9)v and is provided With-aggrasping.portion 142. j From lthe foregoing description `it rvvillfbe evidentthat when .tliefoperatorf',grasps" the portion.

142 and swingsthe 'lever140 about its pivot,

the rod 135 .is moved axiallyY andthe-clutch ring v131'V isIconsequently rotated. Rotation of the clutch ring y131causes-thegpi'ns130 carried-thereby to move downwardly gWithin theinclinedy cam slots 129'c'onsequently moving the clutch`ring122downwardly, thereby moving the :clutch 120 into interlocking engagementwith the'V clutch teeth 121 and 122a7 therby -eifecting rotationof theshaft .94 and :consequently `rotation of the feed sprocket'98zl 1t-Will'beobvio'us that the feed 'sprocket' 98 maybe rotatedorremain'jidle lWhile-the gear 93y continuouslyLrotates.i;.ItV

will also be'evident thatvvhen tliejclutch120'7 .121f-is'connected anduponxapplicationof the clutches `106. 107 controlling connection; of they Worm gears tothe shaft 91, Athe Afeed sproclietfmay be rotatedv in onedirection at a slovvspeed and intheoppositedirectionat.

.a higher speed. yAs clearly shown Figs.

7.and12, the forward' en-dof the frame' secvtion 7 ris cutaway as yat144 to `permit thegear 93 yto mesh; with a/ truclr ,driving gearl of`any suitable form;V thereby to" enable the mining machine to drive` theWheels'of its'gtransportl truck inuaWell-knovv'n mannen--y f fOperati-vely` associated vwith the feed yoperating niember 98 is alsoimproved Yguiding means for.` the fleXible Vfeeding n'lember.`

These meansare herein disposed in a chainvber; 145 extendingtransversely throughjthe frame section 7 and in which thev feedoperating ineinberi's also disposed and preferably vcomprise tvvo setsof guide sprockets 146 and l1471su'it'ably jour-nailed onvertica'l'aXes," the 'sprocketsl146' being disposedadj acent to thefeed-operating ymember slightly in the rear thereof, While YtheVsprockets '147 are -dis- .posed at ftlieopposite" front lcorners of 'themachine.v V:

In the`lv form Y of "the invention shown in Figs. to it Will beobservedthatthefeed f sprocket 98`has been'removed from the shaft` 94and a spur vpinion i150 i substituted therefor, the Q pinion', 150..meshing with ,y internal Y, gear teeth ll-formed onaflargegwinding drum152disposed in the chamber 145; UAS clear-ly' shown in Fig. 145`thewinding drum 152 isv journaledYonf-spaced `alined ball bearings 153and 154 suitably carried `Withli'n'the frame section 7. The bearings 154arecarriedby a detachable bottom plate 1'551rigidly secured to theframeby means including a bolt 156AY arranged coaxial VWith the-vvinding drumandA ,extending there-througli,' a spacing. sleeve 157v being interposed"between the bottom *platef and fthe.- frame section." As

shown-.in Fig. 13,- the two sets ofchain guide sprockets 146,V 147have-been; removed and a pairofsuitable guide! rolls l158 "arepro- Yvided'at the-opposite front corners 'offthe' y machine. The drum f 152iis adapted-to be J i videally"described one and: ainodification Ythereofl which my invention' may assume: in

Y practice, itV lwilljbe @f underetood that these 'by Letters-*Patent15,-;

formsfiof thesaineare shown forpurposesjr` Tof :illustration and thatthe invention `may lie-modified vand'embodied"in various other, Y iforms "without departing" from its spirit V0r'.v

thelscopefo'f the appendedY claims. *j i,

T YVhat I' claim as newand desire to secure` l". vIn- 1am`in'ing';machine, a motor, and

i .ffeedin'gf means `driven thereby including aY ifeedoperating-niember'` adapted to` cooperate i alternatively connectingthe latter inV operar inginember. Y

l 2.v Inamining 25 V; withaiexible feeding-means, and drivingconnectio'ns between saidmotorgand feed operating member comprisingwormsrotatable on transversely extending f horizontalf axes,

wormvv lgearsy meshing respectively therewith,

and separate friction" controlling Clutches arranged coaxially` withsaid .worm gearsl for tive-driving relationr'with said feedfoperat# lmachine, amotor, andfeeding means driven thereby including lav feedVoperating member rotatable/on a. "vertical f axis andY adapted tocooperate with flexibleV 7370" nections between said motor andfeed-operatfeeding means,iand plural speed driving `coning` membercomprising `worms rotatable on transversely extending i horizontal axes,wormV gears meshing' respectively therewith, zand separateVVV friction'ycontrolling Yclutches arrangedcoaxiallywith said worm gears for Yalternatively. connecting the latter in operal Y tive driving relationVwith said feed operat'gming member to veffect rotation of the flatterVatdiffeient speeds.

v Y, f, Inamining machine,a motor, andgfeedi f :fio

ing means driven therebylincluding- I a feed operating member ,Yadaptedrto cooperate with" flexible feedingmeans, :and Y pluralv `speedi driving connections between said motori and feed operating 'membercomprising worms y rotatable on transversely extending horizon# tal axesflying -in thejsame vertical plane,

worm 'gears Ymeshing"respectively therewith,

and means for alternatively connecting said worinl gears indrivingrelation with said feed latterat different speeds. Y

operating member tofeffect yrotation ofthe :4. In. a `mining, machine, amotor,' and feeding'mez'insv drivenvthereby including a fvjfeed-voperating member rotatable. onl a 'flexibler' feedingv means,and'pluralv speed verticalfaxis and adapted :to cooperatev vwith drivingconnections between said motorand ""feedoperating; member comprising`worms c Vrotatable Von transversely extending horizon# tal axes, wormgears meshing respectively- Y therewith and'disposedoi`i.ver'tical"axes,-and meansnrfor alternatively connecting 'said eVvvormfgears 'in' driving relation with said the latter at differentspeeds.

feedoperating' member to effect rotationof 1,815,872" y i Y :5. In 'a'miningfmach-ine, -akmotor7 fandV feeding meansdriven thereby including afeed-operating member Vadapted tofcooper'ate .with flexiblel feedingl`means,-l andwpluralA speed driving connections'v between l saidVi'n'etor and feed operating member V-c'omprisingY wormsrota-tableiat,differenti-speeds Von transversely extending horizontala-xesflying inthesame f vertical plane, `and, worm gears ymeshing respectively therewithandrotatable thereby atdifferent'speeds, said worm ,gears j worm gearsV'beingadapted to driveselective;y y'ly said feed operating member atdifferent speeds. Y e Y 7 Ina mining machine, amotor, and vfeedingmeansrdrivenl thereby including Y,a feed operating member adapted to,cooperate with flexiblefeeding means, and plural speed drivingconnections between said motor and feed. operating memberVcomprising-worms rotatable at differentspeds on transversely,

extending horizontal axes., worm gearsv meshing respectively therewith,and separate fricv tion' eontrolling 'clutches'Y arranged' vc,oaxiallywithsaid worin gears :for selectivelyfconnecting said "worm gears indriving relation with said feedoperating member to eifect'rotation ofthe latterat different'k speeds. g

8.,'In a mining machine, amotor, and feed.- Y

'ing meansQdriven thereby including a feed-V operating member rotatableon averticalaxis and adapted to 'cooperatewith flexible feeding means,and plural speedV driving'connections between'said 'motor and feedoperating member comprisingV worinsrotatable at different speed's on'transversely extending horir zonal axes,'worm gears meshing respectivelytherewith, and separatefriction controlling clutches arrangedcoaxiall'y'with saidworm gearsforselectively Vconnecting said worin Y 5gears for selectively connectingfsaid worin gears in driving relationwith said feed'op-V erating member to effecty rotation ofthe latter at'different speeds.; A' 9.- Ina mining machine, a motor, and feed` ingmeans :driven thereby'fiiicluding a lfeed operating member adaptedtocooperate ,withV Yflexible l feeding A means, V'and f plurali speed"driving connections between saidV motor and i feed operatingimembercomprising lworms rotatable'on transversely extending horizonltajl axes,lworin gears vmeshing respectively ,Worin #totali-Zilli if opposite',dirootions; a'

iiiwlyf, connecting tile gciarilfdionr with 'Saide'edf operating11191.11)

o e(y tingime A. 'i efwoewaid moto andifeilfdneiaiing meme 'alinzingeclicoaxially W1 lig/s f d.' operatively CQ @man v n y y v food.opertingwmeniber complzisngi gears andfoperatwollyiConnected' ,to f

feeding2 V'Ineansi idiiV-,en 'blieljeby :including-,azo alternatively jconnecting said wyorlmgearsi horizontal f axes ilvyiiigv fin -the :igame ventiogl kcionnfiy 'Spur gonvto effect, "notationaoi fluoV latter?at;l dirent; SpeedS,1 ndrlbasblf?" means for'connectingsaiddast'nientonodspul gear tolsaid feed-opemtin nieinloon vf diving-oonneotionslbetweenfsad mut and plone, worinl gears;p meshingf]lria'sfpgactg-voly therewith; si spur gezin arranged'. o'oaxigil,Witlilsaid Worm ,gea;rs,g` largrfpurg genna-Iffineansf-foifalternatively conneotingsaidwonmv geais inf driving," relation withySaldzinstfinenr; f

l5; i Ingal mining-#machin a motoilhanlngf@ n /inga/Spiil' gear meshingwith aid'fin'oto'r; 120:

Yil?? 'a' niining machine, a motor, feeolV ingmeansdrivenftlierebyincluding a feed operating 4nie'iiiber adapted tocooperate .with v flexible feeding means, and plural speed driv-` ingconnections between -said 'motor yand feed operatingf-iiieniberkincluding a horizontal, shaft extending Vtransversely :of the machine,A

l asecondfshaftlarrangedparallel with and above Vsaidl shaft,gearingconnecting -saidV shafts-fast and slovvispeed Worms carried bysaid *f sh afts respectively, Worm gea'rS` ,mesh-Y ingbwith said; Worms,and means for alterna tivelyconnecting said Worm gearsin driving Vv-Qberincludingia horizontal shaft extending transversely of'the machine,` asecond shaft A arranged parallel with; and above-'said shaft,

relation -Withfsaid feed operatingmeinber to l effectfrot'ation of thelattery at diferentspeeds; --l-81`ilna miningmachine, a motor, feedingmeansV driven thereby including a feed oper-y ating-'member rotatableona vertical yaxis and adapted to cooperate with flexible feedingineans,and plural zsp'eed V'driving 'connections bet-v'v-een'said y motor andfeed operatingV Vmein-i gearing connecting 'said shafts, fast and slowspeed Worms carried'bysaid vshafts respecf fr tively, Worin gearsmeshing with said Worms,

and `ineans for AVValternatively connecting sait Worm''gears lindrivingvrelation With said feed operating member ito effect rotation ofthelatt'er at different speeds.;

19s. Infa miningniacliine, a

driving coiineetions betvveen said motor and shafts resiectively,`Wormgears meshing `vvith saidworms, andl meansj including fric'.- tionVclutches arranged coaXially with 'said .Worm gearsforalternativelyfconnecting they feed l(')p'eratingmember'comprising ahorizon-1 tal shaft extending transversely yof the f chine, secondYshaft a'rrai'igedV parallel with v,Midabove' said shaft, geari'ng.connectin-gsaid 'sli'afts,fa`st' and slow@ speed Worms carried by latterdrivingrelation -vvith's aid l feed 'operating memberV to 'edectrotation of the llatter atdifferentspeedsf. i f

feeding i means driven thereby yincluding a feed operating memberrotatable onA a vertical axis, andadapte'dcto cooperatey Withflexis bletfeedingmeans and plural speed driving connections betvveen said `niotorandv feed j operating, member comprising a horizontal Y shaftextendingtransversely o f the machine, a second lshaft arrangedfparallelwith Sand,

above Y saidv shaft, gearingy connectingsaid shafts, fast and slow'speedWorms vcarried by said'shafts respectively, VAWorm gears meshingwith said: 'Worms,"and means including frictionclutchesarrangedcoaxially with" said worm gears vfor alternatively connectingythe latter inV driving relation Withsaid feed-oper-y motor, and feedingmeans drivenV thereby' including ak Y feed operating member adaptedJto-cooperate With'flexible' feedingnieans, land plural speed 20,.,In/'Ya mining: (machine, a! motor, Vand different speeds. l

c ating member `to eifect Vrotationl :of the ylatter Y `machineaniotor,'and l feeding means v ydriven thereby including:v a feedoperatinginember adapted to ycoffpperate" ivithfflexi'ble feeding`means,andV` plural speed driving connections between' said motor and feedoperatingmember including a Vhori'-,k

Zontal shaft extending transversely ofthe machine, 'a second .shaftarranged parallel with and' above said shaft', gearing connecting saidshafts,` fast and, slow` v'speed' Worms carriedA bysaidgshaftsrespectively, Worm gears meshing 'with saidIWQrmS, al spur' `geararranged coaxially'with' saidxvorm gears and "operativelyconnected tosaid feed .operating member, and means for alternativelyconnectingsaid-spur gear in 'driving relation With said "Worm vgears"tofeffectxrotation of; said spur gear at diiferent'speedsl A 22. In amining machine', a motor, fand feeding means driven `tlriereby'.in'cludingf a feed operatinglmember adapted yIto cooper'- ate With`lie'xible feeding means, :andfplural speed driving Y connectionsbetvveensaid motor and feed operatingjmember including geararranged-coaxially with said Worm gears and operatively connected tosaidfeed v'operating inember, and means 1for"falternatively Vconnecting saidspur gear in driving relation with said Worin gears to effect'rotationof said Y spur gear 'atdiderent speeds includingl friction clutchesarranged cofairially with latter. p.

In VYa-mining machine, a motor, and

feeding means driven ltherebyincluding a feedoperating member rotatableonf avertiveal axis and-adapted to cooperate with flex-Y ible feedingmeans, and-plural speedf driving connections betWeensaid motor and feedoperating n iemberl including av horizontal shaftf extendingtranverselyof the machine and dis? posed iii-a vertical plane'perpendicular to thecentral longitudinal vertical plane of tliemachine, asec'ondfshaftarranged parallelvvith said.- shaft,y gearing "connecting said shafts,

fast and slovvspeed Worms'Y carried byV said With said'vvorin gears andVoperatively conne'cte'd to said feed operating "member, and

means for "alternatively connecting lsaid spur gear in driving relation4'With said Worm gears to effect rotation offs'aidspur gear atdiiferentl speeds including friction clutches `ar- "ranged ooaxiallywith 'said v'vvormgears'and one individual-to`each ofthe"same, V

24: a mining'machine,a motor, feeding l-m'ean's driven: lthereby finjclildfirigl ya iio shafts respectively, Worm; gears meshing With saidWorms, `a'spurk gear arranged-coaxially f T5kr emi-,ing member inc ,efe'edepereeingimeiberffoteteble 'efe efverieif i meter feedfeeer ep? lfthe maehijlfe@ @nel 'witheee 'ove ineludingq rbevel :parallel Viththeme13@ axis,

bevel gear meshing therewith, `hoi'zghtil 'said"xiovnsgahd means forelternaively een# qneeeinggeeid worm' gears in driving felation l withseid 'eedpe'atg" member QtOfeHeet fomeiee orf"the'laeterietgdilereneSpeeds.

feeding vvmeans f driven" thereby includingieh'el'meehiee;eeefeefweieeeeiefeevelfgeee fie ieee/e eeexleapeeeuel#weh-ehemeeeeeeie, efbevel f,

\ extending-transversely ofthe -nrmeh111e"enell 10h/'sind bevel geel-'sseeuifehffsec` ncl 'e efe erreeged pereuelf Webfeed eflee'ee eee-e1lgwc'er different speeds@ u H 5 e mime' meehilfree e meee'-, eed

. feeeaeg' emee'ee delven eheeebyifeeleeieg" ie' feedeperating memberfeepfeaie eepegete yieg means 'drieen Lthereby e nel'ling ifeel' fepeeeeiegmembee resemble eeegvefeieel 'exis endfadapted to eeepefaeewi'iihievible fefedg i 1 feg meeneem fase endfslowfepeedftfn missionmeans between Seidin't'e'r hd feed, y

feedA epefmeing membeeet diffel 'ee' epeede',

eeeeteble ee exeelyingf ehepeefefe yeefieel j @Q andfeedoperatinginember including coaxialonly'alternatively connecting saidworm gears in driving relation withsaidfeed operatingfeedoperating'meinber to ell'ect r Amember to I 32;,In a" miningf.machine, a 'horizontalmotori havingarlow compact `casing l restingdirectlyon the mine bottom, the Vvertical dig mension-of themotorfsubstantially Vdeteriiiin ing 'the heightof Vthe machine, andfeeding: means-driven by Ysaid motor and lincluded substantially Hwithinthe f vvertical thereofinclu'ding a: eed operating.l member Y l limitsrotatable onfa verticaljaxis and-adapted tocooperate lwith flexiblefeeding means, and fast 15 said motorand Vfeed operating member infyandy slow speed transmission meanslbetween cluding lworms rotatable on'axes, lying in the same vertical planeY ,extending transversely of themachine and coaxially arranged worm gears meshing respectively with saidworms, and means for onlyy alternatively connecting said worin. gearsin driving relation withsaid i otatioiil of the ,latter at fast and slowspeeds. v

- as. nia mining machine, amewmiidreeiiingimeansdriven thereby includinga feed Operating member adapted to cooperate with flexible feedingmeans, and fast and slow speed transmission means between said motorand-feed operating member including coaxially arranged worin gearsselectively operable t0 drivesaid meinberin opposite directions Y androtatable about a `vertical axisy and a 'coaxial spur gear interposedbetween and selectively` driven by said worm gears and a geai`projectingl between said worm gears and meshing with said coaxial spurgear.

y 34. `In a mining machine, a motor,and feedingV means driven-therebyincluding a feed operating member rotatable on a vertical axisandadapted toccoperate withgflexible feedfing-means, and fast and slowspeed transmission-ineansbetween said motoriaiid feed operating memberto effectrotation of the latter in a V,direction to effect feed oftheinachine including* coaxially arranged worm 'gears selectively operableto drivesaid ineinber in opposite `directions'and disposed on an axisparallel withy the axis of said-feed oper-f atingmember `and'gearingdriven `by said worm gears Vand including a gear projecting` `betweensaid worin gears, said worm gears Vand said gearrotatnig in parallelhorizontal planes.

35. In a mining machine, a motor, and feed'- ingV means driventherebyincluding a feed v operating member adapted to cooperate withflexibleV feeding means, and fast'Y and slow speed transmission meansbetween saidinotor ly arranged wormk gears rotatable Vabout a verticalaxis, and'means for onlyalternatiil'ely connecting said worm gearsindrivingrelaltion with saidfeed operating member to effect rotationofthe latter ina direction toreffect veiner.rotationQ13timiaaei: atyfastandslow speeds.`I l

riiiaiiciiiY ofi the latter in; n

feed-of tlie-machine'at fas and slow speeds.

allel with the Vaxis of saidA feed operating inemy ber, and'nieans foronly alternatively connecting said worm gears in 4 driving relation withsaid-feed Vvoperating member to elf-ect direction` to V eect Y 3f?. 'Ina mining machine,.a motor, andffeed-` ing means driveni therebyincluding a feed operating member adapted to'coopeiate Vwith flexiblefeeding means, and Vfast andY slow speedtransmission means between saidmotor n and feed operating member includingparallel worms rotatable onhorizontal" axes extendfing transversely ofthe machine andlying invertical planes perpendiculary to thecentral longitudinalvertical plane'of the machine and selectivelyy operative to vdrivefsaid feed operatingmember at fast and slowV speeds.

38. Ina mining machine, a motor, and feeding means-driven therebyincluding a feed operating member adapted to cooperate with flexiblefeeding means, andfastrand slow speed'transmissionmeansbetween saidmotor and feed operating member including parallel worms rotatable onhorizontal axes extending transversely ofthe machine and lying vinvertical planes perpendicular to the central longitudinal vertical planeof the machine,

and coaxially arranged worm Agears meshing with said worms respectivelyYand selectivelyoperating memv operative to drive said feed ber at fastand slow'speeds.V f Y 39. Ina mining Vinachine, a motor, and feedingmeans driven thereby including a feed operating meinberadapted tocooperate with flexible feedingY means,`and fast and slow speedtransmission means between said'inotoil and feed operating member'.,includingY par- Y, allel worms rotatable on horizontal Yaxes*extending transversely ofthe machine and lying in vertical planesperpendicular to the central longitudinal vertical planeof l theYmachine, coaxially arranged worm gears meshing with said wormsrespectively, and means-,for alternatively connecting saidL worin gearsin driving relation with said feed operating member to effect rotationofthe latter at fast and slow speeds l y 40.' In a mining machine, amotor, and

feeding means driven thereby including a feed operating member rotatableon -a vertical axis and adapted to cooperate with flexible feedingVmeans, and fastA and slow. speed .transmission means between saidmotorand c a lfeed operating member including'parallel worms rotatableon horizontal axes extend-u n `ingl rtransversely :ofthe machine lyingin vertical'planessperpendicular to thecentral l',longitudinalverticalplane. of theinachine rand selectively operativeto drive vrsaidfeed operatingvmember :atV fastfand. slow speeds;

, eflgna` miningfmachineyamotor, and

yfeeding means j driven thereby including` feedf operating memberrotatable on averti-v i cal.axisandfadaptedit'o cooperate withv fleXiblefeeding means, and: 'fasti and slow speed transmission means between'said motor and feedA operating `vmember including parallel Wormsrotatable on horizontal axes extendingtransver'selyl ofthe machine yandlying in vertical jgilanesV` Lperpendicular to the' centralvylongitudinal*verticalplane of the machine',

and'ffooaXiallyv arranged worm gears meshing n with said .worms:respectively `and selectively operable to f'drivesaidfeed operatingmember 'at-fast'andfslowspeedsigy Y f f :Inga miningL finachine,y amotor, and

I feeding f means driven thereby f including a feed operatingmemberrotatable on a vertivcalaxis' and adapted to `cooperate withflexitransmission ineans"betvveen said rmotor and ble yife'edifngmeans;L andgfast and slow,l speed 1 `feed lo'perating, member 'lvincluding parallel wonmsfrotatable `r'onhori-Zontal axes extendingtransyerselyfof them'achine and klying in .ver-y 230 tie'a'l planesperpendicular to the central jlngitudiii vertical-plaineiof the Ymachine, fcsags'i'all'yA arranged worm-gears' -meshing'with y saidvwormsrespectivelyf and means for alternatively y"connectmg said"wormgears inj drivingfrelition with feed'V operating 'mem- Ibertoelfect rot-ationfof the g 'slcws @edsl Or-*chine kfeeding mechanism=driven thereby in'- cooperate with? flexible feeding meansffandlattiereat est and' 'a mining-fmachine," a motor,fand'ma cli'id'inlg 'al feedoperating 'member adapted l to s f' `plu-ral speed vtransmissionmeans between said yii'iotor and, feed operating memberj-including nceaxial fast and' slow Vspeed f terminal gears rotatable about 1 avertical axis, and friction clutches; coaxialwi'th said gears,one-'individ- .ual tof each gear; for,Y selectively -l connecting the'samein driving relation with v'said-feed' l,aboutLaverticalaids'andadaptedto cooperate operating ememberto'effect rotation ofth-elatf`'tieniy plurality Ijoffspeedsq"v f i a direction toege'ct feed' themachine 44 v*In :a mining machine, 'ia motor, and chine' feedingmechanismjlriven thereby inc fa* feed-)operating inembenrotatable:fleiible yfeeding 'i'neans, 'andk plural speed tr. nsmission meansbetween" said motor and operating member i nclu'di-Ilg C Q atti fastyaudslorvv speed terminal ygears;jr,etatableAv v aboutjfajverticalnaxisifandf, t friction ,Y clutches "Y v coaxial x .with Said gears, oneindividual'l to y l each: gear, l:for selectively' connecting thesamedriving relation' said y'feed "operating memberjto "effect rotationof,fthe `latter, linv a kj.,

lation k-t'o said direction to "effect feedr` of thefmachine atfaplurality of speeds.

'45; In amining machine, afmotorjhaving A l 'ltsiaxisextending'longitudinally vofthe maf-` I chine, :cutting mechanism drivenfromy one end-offsaid motor, and feedinginechanism driven fromy theopposite y*end Vof said rmotor includinga feed operating member,yadapted tojfcooperate Ywith yflexible feeding means, and plural speedtransmission means between I said motor and feed operating member infcluding coaXial-fastanclnslow speed terminal gears rotatable about avertical axis, and y friction clutches 'coaxial with said gears, oneindividual toeachjgear, for selectively connecting thoksam-e yinxdriving relation r,with said Vfeed operating member. to effect rotationof the latter" in a direction to effect feedy i i i ofthe machine at aplurality of. speeds. .nfld ln a mining machine, a motor, and

yfeeding means `driven thereby including 1a feedoperating memberrotatable on a vertical A axis and adapted lto cooperate with flexiblefeeding means, and fast and slow speed transmissionfmeans between saidmotory andffeed operati-ng member including. :coaX-iallyfan.

ranged oppositely, rotatable worin gears rotatableabout a vertical axisandv .se-

lectively operable. to drive said feed y OperatingA membery in,`opposite fdirecf tions,r saidfeed'operating membery being rotatableinjone direction to draw in, said flexible feeding means at a relativelyslowv spc'edjand in the opposite direction to draw in said iieiiiblefeeding means aty af'relal tively' fast'speefdy without changingthei'rethereto.

47;- In amining motor carriedjfthereby and having its powershaftyextending longitudinally of the `machine, cutting'mechanism drivenfrom one` f end ofr'said motor, and feeding mechanism including'a feed.operating member adapted to coo aerate withflexible feedinr means and C7 pluralfspeed kdriving `connections between saidfeedy operatingmemberand the opposite end yofvsaid' motor to veffect rotation of said` memberin a direction yto feedv the machine at a' relativelyslowffcutting speed'andat .a f

relatively high machine lmoving speed andincluding coaxialfast and slowspeed worm' wheels continuously rotatable onra vertical raxis' duringvthe feeding operation andi? selectively [operable to drive saidY "feed foperatingv vmember at @fast andgslow` pref determined.y Vspeeds, fi oneof said Worm wheels being disconnected fromsaid 'feed'. operating memberwhileaftheqother worm 1;; Wheel' is connected in operative 'driving s'relation therewith during drivingzof ysaid member at either speed'.

flexible feedingmeans relative y y machine,V ak machinefraine, ysli-dable'on :its bottom on-the m'inebottom, La

#$48.y In! a miningfmachine, a machine frame slidable on itsbottom onthe mine bottomaa motor Vcarried.thereby and having its lpower s shaftextending.longitudinally of the niacliine,iciitting mechanism/drivenfrom one "end ofsaid motor, and feeding mechanism including a feedopeiatinof member adapted toV cooperate with flexible feeding means, andplural 'speed Vdriving connections Ybetween saidfeed o Jeratino' memberand the or; osite' end Aof said motor to effect .rotationfof said memberin a direction to feed Vthe machine :it

arelatively slow cutting speed and at a relatively high mach-ine movingspeed and includingcoaxial fast and slow yspeed worm wheels continuouslyrotatable on' a Vvertical axis during the feeding operationandselectivel g o Jerable to drive said feedo 'Jeratino b Y whilegthe:otherwoini wheel is connected in member Vat fast and slow )redeterminedspeeds, and worms rotating on parallel axes and meshing-with said wormwheels respec@ tively, one of saidworm wheels being disconnected fromsaid feed operating. member 'operative driving relation therewith duringdrivingof sai-d member at either speed. f

. 49.' In a-mining machine, a machine frame slidable on itsv bottom onthe mine bottom, a motor carried thereby and having its power shaftextending longitudinally' ofthe machine, 'cutting mechanism V.drivenfrom one end' of' said inetoigfand feeding mechanism including a 'feedoperating member adapted to cooperate with flexible feeding means,` andplural speed driving connections between said feed operating member andthe-opposite end ofsaid motor including coaxial fast and slow.`speedworin wheels rotatable on a vertical axis l andv selectivelykoperable to drive' i said feed operating memberV at fast and slow worinwheels respectively and 'gearing connecting said worms together forsimultaneous Cil speeds, and ,worms rotating on parallel vaxes lyingYinfa vertical plane extending transversely of the machine and meshingwith said rotation.V f K 50. In a mining machine, afmachine framerslidable on its vbottoni on the'mine bottom,

a motor Vcarried V"thereby and `having its power shaft extendinglongitudinally of the machine, cutting mechanism driven from one end ofsaid motor, and feeding'mechanismY including a feed operating memberladapted to Vcooperate with flexiblefeeding means, and y plural speeddriving connections between sai-d feed operating-member andthe oppositeendV of said motorr to eect rotation of saidV member 'in a direction tofeed the machine at relatively slow cutting speed and at a relativelyhigh machine.inoviiig speed and including coaxial fasty and slow speedworm wheels rotatable'on a vertical axis anda plu.-

ralityl of friction clutches` coaxial with said worm wheels,oneindividual to each of the saine, for selectively connecting the samein driving relation with .said`4 feed operating member.-V v

l. In a mining machine of the typeslid-` able oiisits bottom cn theminev bottom during cutting, Vfee-d operating :mechanism including`afeed operating-member adapted to cooperate with flexible feedingmeans, a mo- "tor, cutting mechanism driven from one end of said motor,and plural speed'driving connections between said feed ope-ratingmemberandv the opposite endof saidmotor toeffect rotation of said member in adirection-to feed i the machine at, a relatively slow cutting speedand'at a relatively highjniachine moving speed and including coaxialfast and slow speed worm wheelsy rotatable on a'vertical axis, a drivinge-lementcoaxial with said worm Lktical axis and adapted to cooperatedirectly with flexible. feeding meansand actuating ,-ineansy for saidmember to Yeect .feeding of the Vapparatus, at arelatively slowzcuttingspeed and at a relatively high moving speed andincluding'a plurality ofcoaxial worinl wheels disposed on axes parallel'to'a line parallel tothe axis'of' rotation of said feed operating member, means whereby'saidworm wheels may only alternatively drive' saidV feed operating ymember,and means for effecting rotation of said worm wheels at relativelyrespectively therewith. ,4'

lnamining apparatus, vin' combination, a machine frame slidable on itsbottom onthev mine bottom, cutting mechanism carried bysaidmachine-frame, feeding mechanism carried by said machine frame includinga feed operating member rotatable on a vertical axis and adaptedl to{cooperate directly with flexible feeding means and actuating means forsaid member to effect feedingl'of the apparatus at arelativelylslow-cutting speed andV at a relatively high moving speed and includingva plurality of coaxial worm wheels disposed on axes parallel'toeJ lineparallel tov the `axis of rotation Ofsaid feed operating `member,meanswhereby said worm. wheels may onlyaltern'atively drive said feedoperating memberpand means. for

effecting rotation of said worm wheelsat rela-` tively diferent VspeedsV including wormsengaging respectively therewith'and rotatingonvp'arallel axes.

54. In a mining apparatus, in combination,

a machine-frame slidable onfits bottom on. the mine bottom, cuttingmechanism carried by said frame,'feeding mechanismcarried `bysaidframeincludingfa feed operating differentspeedsincluding wormsengaging K' iie Y i' member rotatable lori {afyertical axisf.and

v: ida'pted: to cooperate directlyv With flexible 'Y feeding means and'actuatingmeansf for said feedi operating member to vetlect feeding of. v`the apparatus 'at a 44relatively` slow cuttingr y, speed and at avrela-timely hfigli'moying speed and; including a ypduralitgy of coaxialWorm" y' 'Wheels' rotating ,onaxesfparallel'toa: line parallel totheaxisk of"rotationv ofy said feed operating member, 'means foreiiec'ti-ng rota` -tion 'of said WornrWheels'y aty difiere-nt yspeedsincluding Worms:engagingrespectively therewith,"and means whereby' saidVfeed operating member may bedrfwenx byfeither of said ,Worinr Wheelsincluding clutch means coaxial :with

said, ,Worms Wheels selectively "engageable to canse rthe latterv to?act selectively as driving elements for said feed yoperating member.'

" vr55S In aminngfapparatus, in combinatiom l am cli e frame'slidfableon itsfbott'em: en the mine ottoni," cutting mechanism carriedfbyl said Kirai-ne, rieedlngfmechanism lcarried by sard'tframemcludmgafsfeed operatingzfmem-E.

v berrotatable on: averticalf a-XisV and-adapted'to Ycooperate'diree y f,andfactuatingmea y mmbertofeileetffeed g *with flexible eedingmeans;

ofV the app aratnsaty -afrelativelyrslfow cuttlngspeedand at a rela-V'tively 1 high moving aspeed and including pluralityoif coaxialffwormWheels rota-tingen aires parallel to-` a lineparallel to theaxisfofrotation ,f of Y said ;eed-- operating member,

means fori effecting rotationo said Worm Wheels at dille-rent@speedsincluding yWorms S engaging respectively therewith@ and 'rotatingionparallell axes, andA means whereby said A c `jgeeclifoperatingVmember"may be driven by) -e eitherf of 'said Worinwheels' includingvclutch Va l machine frame slidabl'ev on,=its bottom on Y 45%".

byfs'a-id frame,feedi'ng mechanisni carried`-4 means coaXial withsaid#Worm"v Wheels selec- A r tivelyengageablef to; cause'the latter'toact selectiyely as drivingelements forsaid ffeedf operatingmemberf, lInaaI miningapparatiis, in combination,

the mine bottom, cuttingmechanism carriedi l fb-y said frame includ-inge af4 feed operating member=- retatalOl"iony af Vertical axisl and'adapted toy cooperateI `With flexible'feeding1l means, actuatingmean-sfor'said feedoperatonlyy alternatively 'drive said` 4feed operating65,1, rthe mine;floottoin,v mechanism Acarried ing oppositely *rotatg l57 In; avmining apparatus, in" combination,

aigrrlachine iframe 'sl-idable' on its bottoni:y on V member, and kmeansifor. el'ecting rotation 'of said-zwerm Wheels fatdil'er'entf speedsincl-ud# f Wormsengaging re= fc'alternativelydrivesaidfeedoperatingmemf- 'l bentoeect'feed` at.`aforesaid speedsg; f 'y 60; Inifamininfgnapparatus, incomb'ination," amachine fnamaeslidahle i on `-itsf--bo1to1ny onf by said frame,4feedingmechanism carried said frame ineluding a feed lo. erating` inem@berirotatable` on a Vertical axisV andsadapted 'f to cooperate directlywith flexible feeding Lmeans and ractuating means for saidy feed opsreratingniember to efecteeding of theapparatus at, arelativelfy slowcutting speedl and Y l' y y atk a relatively highmovingspeed andfincludfing aplura'lity' of coaxial Worm" Wheels rotate kableY kori/airesparallel-'toa line parallel tothe anis of rotation ofsaid feed operatingmember, ymeans whereby said Worin wheelssmay' member, and meansforefl'f'ectingl `rotation' of said: Wormy Wheels at different speedsy1nclud-l only-alternatively drive. said" feed operating ingWormsengaging respectively]therewith and-"rotating 1noppositeidirectlons onparalfA mine 'bottonn feed operating means thexeenatone end thereof including a feed o}f erat111gvr rv'58; Ink a miningapparatus'in combina-,tiem e f i afmachine frame slidafble' onltsbottom.onthef member adapted to ycooperate directly rwith flexible feedingmeans, 'a ymoto rifadjacent the' opposite end" ofl ksaid f fra-me` and fhavingfv its axisE extending longitudinally fof the appara'- tus,cutting mechanism driven vfromy one end" y ol" 'said motor; and' drivingconnections'bef all relatively slow cutting' speedy and -at alrelaitivelylhigh moving "speed and including; ay

meshing` respectively therewith and' rotatable' tween i said feedoperatingy member and the? opposite end' of said motor for-effectingrota`-y tion yof'said"memberto feed-the apparatus at, l

kabout vertical axis, said Wormy gearinggbe- .f ing 'disposedintermediate i said f motorvl and? vsaid; rfeed operatingf member, and".means f 'wliereby' 'said'y Worin gears may onlyy alterna# effect feed?'aty aforesaidspeeds;

` yat one end thereofincludingl a feed 'operating yflexible gf'eedingmeans, a motorvv adj-ac entlthe speed and including'a: pluralityofworms' ro-,

means Wherebyfgsaid worm gear'sfmayfoly tively ydrive, saidV feedoperating member opposite endfoffsaid frame, cutting mecha.- f* yn-isxndriven from fone endof said motor, andil c driving connections betweensaid feed'operlf .l2-.fi f atingmember and the opposite'end' oi'saidlmotor for ,er'ecting'rotation"offsaidmemberf toffeedi the apparatus at arelatively s'lowciitf` Y ting speed land at al relatively h i-ghi movingtatingV oppositer v,directions and' coaxial* j `Worm, gears: Ineshingrrespectivelytherewitl and rotatable on ajvertical axis', said wormgearing 'be-ingu disposed intermediatel said motor and said feedoperating member' andA the mine bottom, feed operatingmeans there- .vonat one end'thereof includinga feed operatingmember. adapted tocooperate directly Withflexible-feed-ing ineans,"a -motor adja-`cent-the opposite end of said frame and liaving-its axis extendinglongitudinally of the apparatus, cutting mechanism driven from oii-e end4of said motor, and driving connections Abetween said feed operatingmember and theopposite endfof said motor for effectingrotationfofsaidlmember to feed the apparatus vat arelatively slow cutting' speedand I ata 1relatively high moving speed and includspeeds)Y i y 61.Inamining'apparatus, in combinatiom ingja-plura'lity'of Worms rotatingat different speeds and coaxial Worml gears meshing respectively.therevvith and rotatable on a verticalfaxis, said Worm gearing beingdisposed intermediate said motorand said feed operating member: andlmeans whereby said VWorm gears may onlyalternatelycdrive said feed opperating membertov effect 'feed at aforesaid a machine frame "slidable onits bottom 'on' the mine bottom, feed operating' means thereonat-oneven'd thereof including a feed opery between said feed operatingmember and-the' ating member adapted to cooperate Vdirectly withflexible feeding means, a motor adjacent the opposite end ofsaid frameand' having its Vaxis extending longitudinally of the ap-Y paratus,cutting mechanism driven from, one end of said motor, and drivingconnections opposite end of4 said motor for effecting ro:

tation of Vsaid member tofeed the apparatus at Vafrelatively slowcuttingspeed and at a relatively'high moving speed and including a plu-Arality'of-K'Worms rotating in opposite directions aiid at differentspeeds and'coaxial Worm.

gears meshing respectively th-erevvithand rotatable on a vertical axis,said Worm gearingbeing ldisposed intermediate said motor and said feed:operating member, and meanswhereby said YWorm-gears may Vonlyalternatively drive said feed operating member to effect feed ataforesaid speeds.

62.5111 a, mining machine,- lamotor, and' feeding means l driven therebycomprising a feed operating member adapted to cooperate withl flexible ifeeding means, and :plural'speed driving connections between said motorYand feedfoperatingfmember including Worms'roytati-iig on' horizontalaxes'lying in vertical pla-nes perpendicular to the central longi-.'tudinal vertical 'plane of the machine, fand Worm; gears meshingrespectively` therewith and rotatingon Vvertical axes, said Worm gearsonly being operable to effect'rotation of said feed operating memberselectively at different speeds-. 1 L In amining machine, a motor,andfeeding Vmeans -driventhereby including a feed op! erating memberadaptedto cooperate direct- 1ly Withi'fl'exible' feeding Imeans and driving imeans --therefor,comprising1 -Vofast'y and fsloW speed gear trainsselectivelyy operable to edect Vrot-ation of said feed voperating memberat zontal lmotor carried thereby havingits axis `horizontally disposedand extending longitudinally of. theV machine, said motor having a loWcompact casingl resting directly on the mine bottom,ithe verticaldimension of said Y motor substantially determining the height ofthemachine, cuttingmechanism driven from one end of said motor includinga proJecting cutter bar, and feeding 'means driven from th'e'oppositeend of said motor comprising a rotatable feed operating member adaptedto cooperate'with flexible Vfeeding means,.andVV driving connections.between said motor J and said feedk operating memberv foreii'ectingrotation' of the latter at .fast andv slow lpredeterminedspeeds comprising separate fast and slow 'speed gear trains Whoseelements all rotate on relatively fixed axes and through which `saidfeed operatingfmemberlis selectively driven, each gear train includingintermeshing Worm reductionrgearingf f A65. "In a mining machine, amachine frameslidable on itsbottom directly onlthemn'e bottom during thecutting operation, a hori-Vv V zontal motor.' carried' thereby havingVits axis horizontally disposed andv extending longitudinally of themachine,"said motor having a lovv compact casi-iig resting directly. onVthe mine bottom, the vertical Idimension lofsaid motor substantially4determining ther? height of `the machine, cutting mechanismdriven fromonevendof said motor including a prol jecting cutter bar, and feedingmeans driven from theopposite end of said'motor'comprising a rotatablefeed operatingfmember adapt'- ed to cooperate With flexible vfeedingmeans, anddriving connections betW-eenlsaid motor and saidfeedoperatingmember for effecting rotation fofthe latter at vfastv and slow "prede-ltermined speeds comprising-separate fast and rslow speed-geartrainsLeach gearotrain inclu'ding intermeshing Worm reduction gear- Aingandclutch means-for connecting said" gear! trains only alternatively in'driving relation With `sai-d feed operating member.

66. 'In' amin'in'g machine, ainachine frame sli'dable onY its bottomdirectly on the minel bottom during tliejcuttingioperation, a horizontalmotor. carried therebyhavingY its axis horizontallyv disposed'. andextending `longitu'dinallfyl ofthe machine, said motor having" al "lowcompact VYcasing .resting directlynonf the Vtti ' minelbattoimthe ve; A'motor` substantial off-th f asias@ `1- :dimensionfef said l o .glcflhiamsmydriven lie-26nd; Of said motor including. a prog'fCUtterbargfanid tfeding means driven the opposite end of ysaid motor comiectfrom 'j prising 'av rotatablefeed operating member rotatable about averticalaxi's at the end of the machinevremotefrom said cutter barandadapted to Cooperatelwith yflexible yfeedingy means,`and drivingvconnections between said motor and said feed operating `member :toreii'ecting rotation of'theiatter at fast and slow predetermined speedsvcomprising separate fast andfslow speed geary trains Whosey kelementsall rotate 'on relatively Vfixed axes and through which said feedoperating meni- *berzisvselectively driven, each gear `train inf cludin2.0

ing.

horizontally,disposed and extending longii tudinally Vot the-machine,l:said motor having l a'lovv compact casingresting directlyfonthe minebottom, thevertical dimension of said yjecti'ng cutter bar,` and feedingLmeans driven rinotorsubstantially.k determining the height yof themachine,' cutting *mechanism v driven ifrom one end'offsaid motorincluding fa profrom theopposite end of said motor comprisf ing arotatable feed'operating member rotata- 35 f chine remote from saidcutterbarand adapted ble abolita vertical axis at the end of the mato?!cooperate With Tlexible l,feeding means; and ldrlvmg connectionsbetweenfsaid motor andsaid feedy operating member for effecting rotationof the latter at fastand slowr prede-y y 'terminedspeeds comprisingseparate fast-.and

slow speed-geartrains,`v each gear train iny n cluding intermeshing Wormreduction gearing,v and clutch meansk forV connecting said gear trains`,only alternativelyinvdriving relation with said feed operating member.

f y6,8. Ina mining machine, a machine frame adapted to rrest uponandslidein anydirection over the mine bottom; avmotor `carried by saidframe, cuttingmechanismfdriven by said motor including a kerf 'cutterprojecting fronr said frame', and-feeding means y driven by said motorincluding a feed operatingmemberdisposed on "an axis lyingv in avertical plane extending transversely.` of

' themachine andy adapted tofcooperate di- ',rectly'fivith flexiblefeeding.n'ieans,"v and,

V`plural rpredetermined yspeeddriving con,- 1 nections f between Lsaidmotor and said feed operating member including"v fast'` kand slow speedWorm gear trains! leach including a `Worm Wheel f rotatablel con an'axis parallel Withthe axis of saidfeed,operatingmember7k 'and means foronly alternatively"connecting 65- v saidY Worm Wheels in Vdrivingrelation'vvith rminn'g the' height fof the machine speed.; v c, c

.Y 69. Inga mining machine, a machinerame g intermeshing [Worm reductiongear- 67; Ina mining machine, a machine frame- V lslidable kon its`bottom. directlyon the mine) Y bottom duringy the cutting., operation,a horigontal motor carriedthereby havingQits axis 25k Said feedl0,pera-tingmembertoV Veffectr lrota: tiony 0f? thelatter in adirectionv tol eiiect'feed atrp'either' a fast or a slow adaptedfto restupony and slidein anyvdi-y rectionA over vthe mine'bottom, a horizontalginotoncarried by ksaiidf' frame anda having a levi/[compact casingresting directly yon the mine'bottom, the vertical dimension of saidmotor? substantially determining ythe height of the' machine, cuttingmechanism driven by sai-d' ymotor including al kerfy cutter projecting.from said' frame, and feeding kmeans driven by said motor and inclu-dedsubstantially; Within the vertical limits thereeoY oineludinga feed,operating member disposedfon an. lying ina vertical planiefextendingtransversely: of the; machine and adapted Y`to' cooperate directlykwithk flexible feeding ;means,; and plural` predeterminedspeed@driving,y connections; between said mo-l Y tor.- .andz'fsaid :feedoperating member includ;

ingr. fast and y'sloivspeed Wormf gear trains.y

eaclr'ifncluding aworm nvvheelf,4 said vvorm Wheeisbeingfcoaxiallyarrangemand means l fori only; alternatively connecting said#Worm?.v4Wh'eel'sfin, drifving relationwithfsaidfeed." operating.;` member 't'o`eiiect rotation of' the latter in vdirectionto efectffeed of themachineatreitherai fast or af slovvvrspeed; Y, 1 70. amining-machinaamachinezframe adaptedto rest uponv and slide in anyf direc.-

tion over: the: 'mineI bottom a: motor carried by; saidrframeacuttingmechanism driven by? said motor including akerf' cutter-`projectingfyfrom; said f-rame5 and 'feeding 'meansdrivenY byfsaidimotor includingjafeed operating;l

member disposed 'Ona-an ajxislying in: an averti--y caflf' plane,extending :transversely: of the machine andadaptedftocooperate withflexible feedingmeans, ce and'= plural predetemined speedff drivingyconnections 4between said mfo- `tor, y2nd-said feed/operating memberincludingl fastiand slow-speed-worm" gear trains eachinL Worm` Wheelsin. driving l relation with said Y feedhoperating memberfet'o effect(rotation of 'the v latter in al directionto effect 'feed of' *fthemachine at eitherja fast orfa slovvfspeedp 71.L In a` mini-ngmachine, amaehin'e'frame adapted', to rest upon and slfide'in anykgdirectionrover,the mine bottom, amotor carriedby saidrame, cutting mechanism dri-ven'bysaidy motor including akert cutter projecting from saidA frame; andfeeding ymeansv driverrby said'v motory including af'feed'operating"member disey posedion an axis" lying inv a vertical planeexl', tending: transversely'f 'ofl the?.y machine' and'k adaptedr t@cooperate` directly -with: krflexible' 1 feeding@,m'e'ans5 'and Lplural4 `'predeiterininedv cludinga Worm.y Wheel rotatableon"v a-in;'axisrv yliia'rlya'llelY with theaxis of said feedA operati membenj yand frictionA clutches 'coaxi alf'vvith said worm Wheels,` one 'individual-k 'tos eachk rmlfnnjWheeh` forselectively connecting sai-d'7V '115l speed driving vconnections between said mosaid feed operating memberto effect rotation tor and'vsaid feed Aoperating member includ ofthelatter in a direction, to effect feed of ing fasi; and slow 'speed vWormygear trains the machine at either a fast or a slow speed.

each including a Worm Wheel rotatable onan axis parallel with'the' axisof Vsaid feed oper? themachine at either a fast or a slow speed,

Y 7 2. In a mining machine, a machine frame adapted to rest upon andslide in any direction over the minebottom,a horizontal motor "carriedby saidframe, and having a low i l compact casing resting directly onthe mine bottom, the vertical dimension of said motor substantiallydetermining the height of ,they

machine, cuttingfmechanism driven by'said Q motor including a 'kerfcutter lprojecting from saidl frame, and feeding means driven by saidVmotor and included substantially -k Within the Vvertical `limits thereofvincluding a kfeed "operating *member disposed on anV axis lying in' a'vertical planeY extending transversely ofthe machine and adapted tocooperate ,directly With flexible feeding means,=an d pluralpredetermined speed driving connections between'said motor'and saidfeedzoperafting member including v,fast and slow' speed Worm gear trainseach including a Worm ,Wheel4 and a Worm, said Worms rotating onfpa'rallel'axesat different'sp'eeds and meshing with said Wormrwheelslrespectively, said Worm Wheelsbeing coaxially arranged,

--and means for only alternatively connecting said Worm vWheels indriving 4relation With said' feed operating member to yeffect rotation Yof the latterrin a directiontoelfect feed of the machine at either alfast or a slow speed.

, 73. In'a'mining machine, a machine frame adapted torest 'upon andslide in any direction vover the mine bottom,i a motor carried bysai'dframe, 'cutting niechanismdriven by said motor 4including a kerfcuttei'projecting from said frame, andffeeding means driven by Vsaidmotor including a ,feed

operating member disposed on' an axis lying in'a vertical planeextending transversely ofv the'machin'e'and ladapted to cooperate withflexibleffeeding means,and plural predetermined speed drivingconnections Abetween :i saidinotor. andsaid feed operating I'nemberv'including fast and slow speed Worm ygear trains each including a WormWheel rotatable on an'axis parallel With-the axis of said feedoperating'member and a Worm, and

e each Worm 'Wheehfor'selectively connecting said; vvorin' Wheels findrivingrelation; with In testimonyvv hereof I affix my signature.

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